262
FNUS72 KMLB 180607
FWSMLB
SPOT FORECAST FOR SFWMD - GARDNER MARSH 20...SFWMD
NATIONAL WEATHER SERVICE MELBOURNE FL
207 AM EDT WED MAR 18 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MARCH 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
PERSISTENT NORTH BREEZES TURN NORTH-NORTHEAST THIS AFTERNOON FROM
10-14 MPH WITH A FEW GUSTS TO 20 MPH. DRIER AIR CONTINUES TO
SETTLE OVER THE AREA, ALLOWING RH VALUES TO FALL AS LOW AS 35-40%
THIS AFTERNOON. NO RAIN IS FORECAST UNDER PARTLY TO MOSTLY SUNNY SKIES.
PEAK DISPERSION WILL BECOME VERY GOOD THIS AFTERNOON. WINDS WILL
REMAIN ELEVATED INTO TONIGHT, N 5-10 MPH.
REST OF TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 71.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........NORTH WINDS 10 TO 13 MPH.
MIXING HEIGHT.......3500 FT AGL INCREASING TO 5500 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....NORTH 12 TO 16 MPH.
DISPERSION INDEX....32 INCREASING TO 54.
LVORI...............1.
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........16 18 21 24 26 27 27 25
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0
TEMP............55 60 63 66 69 69 69 70
RH..............61 53 50 46 43 41 41 40
20 FT WIND DIR..N N N N N N N NE
20 FT WIND SPD..10 12 12 12 12 12 12 13
20 FT WIND GUST.18 20 20 20 20 20 20 20
MIX HGT (KFT)...1.6 2.3 3.5 4.4 5.1 5.4 5.5 5.4
TRANSP WIND DIR.N N N N N N N N
TRANSP WIND SPD.15 16 14 14 13 12 12 12
DISPERSION IDX..32 43 48 57 58 58 49 50
LVORI...........1 1 1 1 1 1 1 1
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........90 PERCENT.
WIND (20 FT)........NORTH WINDS 8 TO 12 MPH.
MIXING HEIGHT.......3100 FT AGL DECREASING TO 500 FT AGL EARLY IN
THE EVENING.
TRANSPORT WINDS.....NORTH 14 TO 17 MPH.
DISPERSION INDEX....56 DECREASING TO 12 EARLY IN THE EVENING.
LVORI...............2 INCREASING TO 5.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........24 29 40 43 47 46
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
TEMP............68 61 56 53 51 51
RH..............43 56 70 78 86 86
20 FT WIND......NE 12 N 12 N 10 N 9 N 8 N 9
20 FT WIND GUST.20 17 17 16 14 15
MIX HGT (FT)....4600 1000 800 700 600 600
TRANSPORT WIND..N 14 N 17 N 16 N 14 N 15 N 14
DISPERSION IDX..55 12 14 13 13 12
LVORI...........1 2 3 4 4 4
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........48 PERCENT.
WIND (20 FT)........NORTH WINDS 9 TO 14 MPH.
MIXING HEIGHT.......2200 FT AGL INCREASING TO 5600 FT AGL.
TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
DISPERSION INDEX....11 INCREASING TO 36 LATE IN THE MORNING, THEN
INCREASING TO 53 LATE IN THE MORNING INCREASING
TO 67 EARLY IN THE AFTERNOON INCREASING TO 83
DECREASING TO 77 LATE IN THE AFTERNOON.
LVORI...............4 DECREASING TO 1 IN THE LATE MORNING AND
AFTERNOON.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY (%).........44 28 31 49
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 10 10 10
TEMP............51 55 67 72
RH..............85 78 56 48
20 FT WIND......N 9G16 N 12G20 N 13G21 N 13G22
MIX HGT (FT)....500 1500 3900 5600
TRANSPORT WIND..N 15 N 18 N 18 N 20
DISPERSION IDX..13 36 67 87
LVORI...........4 3 1 1
FORECASTER...HEIL
REQUESTED BY...JIM BLUSH
TYPE OF REQUEST...PRESCRIBED
.TAG 2606200.0/MLB
.DELDT 03/18/26
.FORMATTERVERSION 2.0.0
.EMAIL JBLUSH@SFWMD.GOV
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